<template>
    <div class="app-container">
        <!-- 顶部 Header 区域 -->
        <mt-header fixed title="Vue项目">
			<span slot="left" @click="goBack" v-show="flag">
				<mt-button icon="back">返回</mt-button>
			</span>
		</mt-header>


        <!-- 中间的路由router-view区域 -->
		<transition>
			<router-view></router-view>
		</transition>

        <!-- 底部 Tabbar 区域 -->
         <nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart">
					<span class="mui-badge" id="badge">{{ $store.getters.getAllCount }}</span></span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>

    </div>
</template>

<script>
 export default{
	 data(){
		 return{
			 flag: false
		 };
	 },
	 created(){
		 this.flag = this.$route.path === '/home'?false: true;
	 },
	 methods:{
		 goBack(){
			 //点击后退
			 this.$router.go(-1);
		 }
	 },
	 watch:{
		 '$route.path':function(newVal){
			 if(newVal === '/home'){
				 this.flag = false;
			 }else{
				 this.flag = true;
			 }
		 }
	 }
 }
</script>

<style lang="scss" scoped>
.app-container{
    padding-top: 40px;
	padding-bottom: 50px;
	overflow-x: hidden;
}

.v-enter{
	opacity: 0;
	transform: translateX(100%);
}

.v-leave-to{
	opacity: 0;
	transform: translateX(-100%);
	position: absolute;
}

.v-enter-active,
.v-leave-active{
	transition: all 0.5s ease;
}
</style>


